Add attestation support to KeymasterContext

This CL also implements the necessary context bits for
SoftKeymasterContext, in a necessarily completely insecure way. The
software attestation intermediate key and intermediate and root
certificates are hardcoded.  Software attestation is meaningless, but
needed to make the APIs work the same for both software and hardware.

Bug: 22914603
Change-Id: I1c3439409829c0991db2f0b54e11fb59b5e9bd87

5 files changed, 400 insertions, 0 deletions

diff --git a/include/keymaster/android_keymaster_utils.h b/include/keymaster/android_keymaster_utils.h
index 1964f1f..3ce56cc 100644
--- a/include/keymaster/android_keymaster_utils.h
+++ b/include/keymaster/android_keymaster_utils.h
@@ -312,6 +312,17 @@ struct Malloc_Delete {
     void operator()(void* p) { free(p); }
 };
 
+struct CertificateChainDelete {
+    void operator()(keymaster_cert_chain_t* p) {
+        if (!p)
+            return;
+        for (size_t i = 0; i < p->entry_count; ++i)
+            delete[] p->entries[i].data;
+        delete[] p->entries;
+        delete p;
+    }
+};
+
 }  // namespace keymaster
 
 #endif  // SYSTEM_KEYMASTER_ANDROID_KEYMASTER_UTILS_H_
diff --git a/include/keymaster/keymaster_context.h b/include/keymaster/keymaster_context.h
index 338b408..c9802e4 100644
--- a/include/keymaster/keymaster_context.h
+++ b/include/keymaster/keymaster_context.h
@@ -19,6 +19,8 @@
 
 #include <assert.h>
 
+#include <openssl/evp.h>
+
 #include <hardware/keymaster_defs.h>
 #include <keymaster/keymaster_enforcement.h>
 
@@ -127,6 +129,20 @@ class KeymasterContext {
      */
     virtual KeymasterEnforcement* enforcement_policy() = 0;
 
+    /**
+     * Return the attestation signing key of the specified algorithm (KM_ALGORITHM_RSA or
+     * KM_ALGORITHM_EC).
+     */
+    virtual EVP_PKEY* AttestationKey(keymaster_algorithm_t algorithm,
+                                     keymaster_error_t* error) const = 0;
+
+    /**
+     * Return the certificate chain of the attestation signing key of the specified algorithm
+     * (KM_ALGORITHM_RSA or KM_ALGORITHM_EC).
+     */
+    virtual keymaster_cert_chain_t* AttestationChain(keymaster_algorithm_t algorithm,
+                                                     keymaster_error_t* error) const = 0;
+
   private:
     // Uncopyable.
     KeymasterContext(const KeymasterContext&);
diff --git a/include/keymaster/soft_keymaster_context.h b/include/keymaster/soft_keymaster_context.h
index 413117a..d9c02f2 100644
--- a/include/keymaster/soft_keymaster_context.h
+++ b/include/keymaster/soft_keymaster_context.h
@@ -71,6 +71,11 @@ class SoftKeymasterContext : public KeymasterContext {
     keymaster_error_t AddRngEntropy(const uint8_t* buf, size_t length) const override;
     keymaster_error_t GenerateRandom(uint8_t* buf, size_t length) const override;
 
+    EVP_PKEY* AttestationKey(keymaster_algorithm_t algorithm,
+                             keymaster_error_t* error) const override;
+    keymaster_cert_chain_t* AttestationChain(keymaster_algorithm_t algorithm,
+                                             keymaster_error_t* error) const override;
+
     KeymasterEnforcement* enforcement_policy() override {
         // SoftKeymaster does no enforcement; it's all done by Keystore.
         return nullptr;
diff --git a/soft_keymaster_context.cpp b/soft_keymaster_context.cpp
index a703b4b..bde7ae1 100644
--- a/soft_keymaster_context.cpp
+++ b/soft_keymaster_context.cpp
@@ -45,6 +45,272 @@ namespace keymaster {
 namespace {
 static uint8_t master_key_bytes[AES_BLOCK_SIZE] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 const KeymasterKeyBlob MASTER_KEY(master_key_bytes, array_length(master_key_bytes));
+
+static uint8_t kRsaAttestKey[] = {
+    0x30, 0x82, 0x02, 0x5d, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xc0, 0x83, 0x23, 0xdc, 0x56,
+    0x88, 0x1b, 0xb8, 0x30, 0x20, 0x69, 0xf5, 0xb0, 0x85, 0x61, 0xc6, 0xee, 0xbe, 0x7f, 0x05, 0xe2,
+    0xf5, 0xa8, 0x42, 0x04, 0x8a, 0xbe, 0x8b, 0x47, 0xbe, 0x76, 0xfe, 0xae, 0xf2, 0x5c, 0xf2, 0x9b,
+    0x2a, 0xfa, 0x32, 0x00, 0x14, 0x16, 0x01, 0x42, 0x99, 0x89, 0xa1, 0x5f, 0xcf, 0xc6, 0x81, 0x5e,
+    0xb3, 0x63, 0x58, 0x3c, 0x2f, 0xd2, 0xf2, 0x0b, 0xe4, 0x98, 0x32, 0x83, 0xdd, 0x81, 0x4b, 0x16,
+    0xd7, 0xe1, 0x85, 0x41, 0x7a, 0xe5, 0x4a, 0xbc, 0x29, 0x6a, 0x3a, 0x6d, 0xb5, 0xc0, 0x04, 0x08,
+    0x3b, 0x68, 0xc5, 0x56, 0xc1, 0xf0, 0x23, 0x39, 0x91, 0x64, 0x19, 0x86, 0x4d, 0x50, 0xb7, 0x4d,
+    0x40, 0xae, 0xca, 0x48, 0x4c, 0x77, 0x35, 0x6c, 0x89, 0x5a, 0x0c, 0x27, 0x5a, 0xbf, 0xac, 0x49,
+    0x9d, 0x5d, 0x7d, 0x23, 0x62, 0xf2, 0x9c, 0x5e, 0x02, 0xe8, 0x71, 0x02, 0x03, 0x01, 0x00, 0x01,
+    0x02, 0x81, 0x81, 0x00, 0xbe, 0x86, 0x0b, 0x0b, 0x99, 0xa8, 0x02, 0xa6, 0xfb, 0x1a, 0x59, 0x43,
+    0x8a, 0x7b, 0xb7, 0x15, 0x06, 0x5b, 0x09, 0xa3, 0x6d, 0xc6, 0xe9, 0xca, 0xcc, 0x6b, 0xf3, 0xc0,
+    0x2c, 0x34, 0xd7, 0xd7, 0x9e, 0x94, 0xc6, 0x60, 0x64, 0x28, 0xd8, 0x8c, 0x7b, 0x7f, 0x65, 0x77,
+    0xc1, 0xcd, 0xea, 0x64, 0x07, 0x4a, 0xbe, 0x8e, 0x72, 0x86, 0xdf, 0x1f, 0x08, 0x11, 0xdc, 0x97,
+    0x28, 0x26, 0x08, 0x68, 0xde, 0x95, 0xd3, 0x2e, 0xfc, 0x96, 0xb6, 0xd0, 0x84, 0xff, 0x27, 0x1a,
+    0x5f, 0x60, 0xde, 0xfc, 0xc7, 0x03, 0xe7, 0xa3, 0x8e, 0x6e, 0x29, 0xba, 0x9a, 0x3c, 0x5f, 0xc2,
+    0xc2, 0x80, 0x76, 0xb6, 0xa8, 0x96, 0xaf, 0x1d, 0x34, 0xd7, 0x88, 0x28, 0xce, 0x9b, 0xdd, 0xb1,
+    0xf3, 0x4f, 0x9c, 0x94, 0x04, 0x43, 0x07, 0x81, 0x29, 0x8e, 0x20, 0x13, 0x16, 0x72, 0x5b, 0xbd,
+    0xbc, 0x99, 0x3a, 0x41, 0x02, 0x41, 0x00, 0xe1, 0xc6, 0xd9, 0x27, 0x64, 0x6c, 0x09, 0x16, 0xec,
+    0x36, 0x82, 0x6d, 0x59, 0x49, 0x83, 0x74, 0x0c, 0x21, 0xf1, 0xb0, 0x74, 0xc4, 0xa1, 0xa5, 0x98,
+    0x67, 0xc6, 0x69, 0x79, 0x5c, 0x85, 0xd3, 0xdc, 0x46, 0x4c, 0x5b, 0x92, 0x9e, 0x94, 0xbf, 0xb3,
+    0x4e, 0x0d, 0xcc, 0x50, 0x14, 0xb1, 0x0f, 0x13, 0x34, 0x1a, 0xb7, 0xfd, 0xd5, 0xf6, 0x04, 0x14,
+    0xd2, 0xa3, 0x26, 0xca, 0xd4, 0x1c, 0xc5, 0x02, 0x41, 0x00, 0xda, 0x48, 0x59, 0x97, 0x78, 0x5c,
+    0xd5, 0x63, 0x0f, 0xb0, 0xfd, 0x8c, 0x52, 0x54, 0xf9, 0x8e, 0x53, 0x8e, 0x18, 0x98, 0x3a, 0xae,
+    0x9e, 0x6b, 0x7e, 0x6a, 0x5a, 0x7b, 0x5d, 0x34, 0x37, 0x55, 0xb9, 0x21, 0x8e, 0xbd, 0x40, 0x32,
+    0x0d, 0x28, 0x38, 0x7d, 0x78, 0x9f, 0x76, 0xfa, 0x21, 0x8b, 0xcc, 0x2d, 0x8b, 0x68, 0xa5, 0xf6,
+    0x41, 0x8f, 0xbb, 0xec, 0xa5, 0x17, 0x9a, 0xb3, 0xaf, 0xbd, 0x02, 0x40, 0x50, 0xfe, 0xfc, 0x32,
+    0x64, 0x95, 0x59, 0x61, 0x6e, 0xd6, 0x53, 0x4e, 0x15, 0x45, 0x09, 0x32, 0x9d, 0x93, 0xa3, 0xd8,
+    0x10, 0xdb, 0xe5, 0xbd, 0xb9, 0x82, 0x29, 0x2c, 0xf7, 0x8b, 0xd8, 0xba, 0xdb, 0x80, 0x20, 0xae,
+    0x8d, 0x57, 0xf4, 0xb7, 0x1d, 0x05, 0x38, 0x6f, 0xfe, 0x9e, 0x9d, 0xb2, 0x71, 0xca, 0x34, 0x77,
+    0xa3, 0x49, 0x99, 0xdb, 0x76, 0xf8, 0xe5, 0xec, 0xe9, 0xc0, 0xd4, 0x9d, 0x02, 0x40, 0x15, 0xb7,
+    0x4c, 0xf2, 0x7c, 0xce, 0xff, 0x8b, 0xb3, 0x6b, 0xf0, 0x4d, 0x9d, 0x83, 0x46, 0xb0, 0x9a, 0x2f,
+    0x70, 0xd2, 0xf4, 0x43, 0x9b, 0x0f, 0x26, 0xac, 0x7e, 0x03, 0xf7, 0xe9, 0xd1, 0xf7, 0x7d, 0x4b,
+    0x91, 0x5f, 0xd2, 0x9b, 0x28, 0x23, 0xf0, 0x3a, 0xcb, 0x5d, 0x52, 0x00, 0xe0, 0x85, 0x7f, 0xf2,
+    0xa8, 0x03, 0xe9, 0x3e, 0xee, 0x96, 0xd6, 0x23, 0x5c, 0xe9, 0x54, 0x42, 0xbc, 0x21, 0x02, 0x41,
+    0x00, 0x90, 0xa7, 0x45, 0xda, 0x89, 0x70, 0xb2, 0xcd, 0x64, 0x96, 0x60, 0x32, 0x42, 0x28, 0xc5,
+    0xf8, 0x28, 0x56, 0xff, 0xd6, 0x65, 0xba, 0x9a, 0x85, 0xc8, 0xd6, 0x0f, 0x1b, 0x8b, 0xee, 0x71,
+    0x7e, 0xcd, 0x2c, 0x72, 0xea, 0xe0, 0x1d, 0xad, 0x86, 0xba, 0x76, 0x54, 0xd4, 0xcf, 0x45, 0xad,
+    0xb5, 0xf1, 0xf2, 0xb3, 0x1d, 0x9f, 0x81, 0x22, 0xcf, 0xa5, 0xf1, 0xa5, 0x57, 0x0f, 0x9b, 0x2d,
+    0x25,
+};
+
+static uint8_t kRsaAttestCert[] = {
+    0x30, 0x82, 0x02, 0xb6, 0x30, 0x82, 0x02, 0x1f, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x02, 0x10,
+    0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00,
+    0x30, 0x63, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31,
+    0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f,
+    0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d,
+    0x6f, 0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31, 0x15, 0x30, 0x13,
+    0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49,
+    0x6e, 0x63, 0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e,
+    0x64, 0x72, 0x6f, 0x69, 0x64, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x31, 0x30, 0x34, 0x31,
+    0x32, 0x34, 0x30, 0x35, 0x33, 0x5a, 0x17, 0x0d, 0x33, 0x35, 0x31, 0x32, 0x33, 0x30, 0x31, 0x32,
+    0x34, 0x30, 0x35, 0x33, 0x5a, 0x30, 0x76, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06,
+    0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43,
+    0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55,
+    0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e,
+    0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e, 0x64, 0x72, 0x6f,
+    0x69, 0x64, 0x31, 0x29, 0x30, 0x27, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x20, 0x41, 0x6e, 0x64,
+    0x72, 0x6f, 0x69, 0x64, 0x20, 0x53, 0x6f, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65, 0x20, 0x41, 0x74,
+    0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x4b, 0x65, 0x79, 0x30, 0x81, 0x9f,
+    0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03,
+    0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xc0, 0x83, 0x23, 0xdc, 0x56, 0x88,
+    0x1b, 0xb8, 0x30, 0x20, 0x69, 0xf5, 0xb0, 0x85, 0x61, 0xc6, 0xee, 0xbe, 0x7f, 0x05, 0xe2, 0xf5,
+    0xa8, 0x42, 0x04, 0x8a, 0xbe, 0x8b, 0x47, 0xbe, 0x76, 0xfe, 0xae, 0xf2, 0x5c, 0xf2, 0x9b, 0x2a,
+    0xfa, 0x32, 0x00, 0x14, 0x16, 0x01, 0x42, 0x99, 0x89, 0xa1, 0x5f, 0xcf, 0xc6, 0x81, 0x5e, 0xb3,
+    0x63, 0x58, 0x3c, 0x2f, 0xd2, 0xf2, 0x0b, 0xe4, 0x98, 0x32, 0x83, 0xdd, 0x81, 0x4b, 0x16, 0xd7,
+    0xe1, 0x85, 0x41, 0x7a, 0xe5, 0x4a, 0xbc, 0x29, 0x6a, 0x3a, 0x6d, 0xb5, 0xc0, 0x04, 0x08, 0x3b,
+    0x68, 0xc5, 0x56, 0xc1, 0xf0, 0x23, 0x39, 0x91, 0x64, 0x19, 0x86, 0x4d, 0x50, 0xb7, 0x4d, 0x40,
+    0xae, 0xca, 0x48, 0x4c, 0x77, 0x35, 0x6c, 0x89, 0x5a, 0x0c, 0x27, 0x5a, 0xbf, 0xac, 0x49, 0x9d,
+    0x5d, 0x7d, 0x23, 0x62, 0xf2, 0x9c, 0x5e, 0x02, 0xe8, 0x71, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3,
+    0x66, 0x30, 0x64, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0xd4, 0x0c,
+    0x10, 0x1b, 0xf8, 0xcd, 0x63, 0xb9, 0xf7, 0x39, 0x52, 0xb5, 0x0e, 0x13, 0x5c, 0xa6, 0xd7, 0x99,
+    0x93, 0x86, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x29,
+    0xfa, 0xf1, 0xac, 0xcc, 0x4d, 0xd2, 0x4c, 0x96, 0x40, 0x27, 0x75, 0xb6, 0xb0, 0xe9, 0x32, 0xe5,
+    0x07, 0xfe, 0x2e, 0x30, 0x12, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x08, 0x30,
+    0x06, 0x01, 0x01, 0xff, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01,
+    0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x84, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x9e, 0x2d, 0x48, 0x5f, 0x8c, 0x67,
+    0x33, 0xdc, 0x1a, 0x85, 0xad, 0x99, 0xd7, 0x50, 0x23, 0xea, 0x14, 0xec, 0x43, 0xb0, 0xe1, 0x9d,
+    0xea, 0xc2, 0x23, 0x46, 0x1e, 0x72, 0xb5, 0x19, 0xdc, 0x60, 0x22, 0xe4, 0xa5, 0x68, 0x31, 0x6c,
+    0x0b, 0x55, 0xc4, 0xe6, 0x9c, 0xa2, 0x2d, 0x9f, 0x3a, 0x4f, 0x93, 0x6b, 0x31, 0x8b, 0x16, 0x78,
+    0x16, 0x0d, 0x88, 0xcb, 0xd9, 0x8b, 0xcc, 0x80, 0x9d, 0x84, 0xf0, 0xc2, 0x27, 0xe3, 0x6b, 0x38,
+    0xf1, 0xfd, 0xd1, 0xe7, 0x17, 0x72, 0x31, 0x59, 0x35, 0x7d, 0x96, 0xf3, 0xc5, 0x7f, 0xab, 0x9d,
+    0x8f, 0x96, 0x61, 0x26, 0x4f, 0xb2, 0xbe, 0x81, 0xbb, 0x0d, 0x49, 0x04, 0x22, 0x8a, 0xce, 0x9f,
+    0xf7, 0xf5, 0x42, 0x2e, 0x25, 0x44, 0xfa, 0x21, 0x07, 0x12, 0x5a, 0x83, 0xb5, 0x55, 0xad, 0x18,
+    0x82, 0xf8, 0x40, 0x14, 0x9b, 0x9c, 0x20, 0x63, 0x04, 0x7f,
+};
+
+static uint8_t kRsaAttestRootCert[] = {
+    0x30, 0x82, 0x02, 0xa7, 0x30, 0x82, 0x02, 0x10, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x09, 0x00,
+    0xff, 0x94, 0xd9, 0xdd, 0x9f, 0x07, 0xc8, 0x0c, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+    0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, 0x63, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
+    0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c,
+    0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06,
+    0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56,
+    0x69, 0x65, 0x77, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f,
+    0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03,
+    0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x30, 0x1e, 0x17, 0x0d,
+    0x31, 0x36, 0x30, 0x31, 0x30, 0x34, 0x31, 0x32, 0x33, 0x31, 0x30, 0x38, 0x5a, 0x17, 0x0d, 0x33,
+    0x35, 0x31, 0x32, 0x33, 0x30, 0x31, 0x32, 0x33, 0x31, 0x30, 0x38, 0x5a, 0x30, 0x63, 0x31, 0x0b,
+    0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06,
+    0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61,
+    0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75, 0x6e, 0x74,
+    0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04,
+    0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31,
+    0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69,
+    0x64, 0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+    0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xa2, 0x6b,
+    0xad, 0xeb, 0x6e, 0x2e, 0x44, 0x61, 0xef, 0xd5, 0x0e, 0x82, 0xe6, 0xb7, 0x94, 0xd1, 0x75, 0x23,
+    0x1f, 0x77, 0x9b, 0x63, 0x91, 0x63, 0xff, 0xf7, 0xaa, 0xff, 0x0b, 0x72, 0x47, 0x4e, 0xc0, 0x2c,
+    0x43, 0xec, 0x33, 0x7c, 0xd7, 0xac, 0xed, 0x40, 0x3e, 0x8c, 0x28, 0xa0, 0x66, 0xd5, 0xf7, 0x87,
+    0x0b, 0x33, 0x97, 0xde, 0x0e, 0xb8, 0x4e, 0x13, 0x40, 0xab, 0xaf, 0xa5, 0x27, 0xbf, 0x95, 0x69,
+    0xa0, 0x31, 0xdb, 0x06, 0x52, 0x65, 0xf8, 0x44, 0x59, 0x57, 0x61, 0xf0, 0xbb, 0xf2, 0x17, 0x4b,
+    0xb7, 0x41, 0x80, 0x64, 0xc0, 0x28, 0x0e, 0x8f, 0x52, 0x77, 0x8e, 0xdb, 0xd2, 0x47, 0xb6, 0x45,
+    0xe9, 0x19, 0xc8, 0xe9, 0x8b, 0xc3, 0xdb, 0xc2, 0x91, 0x3f, 0xd7, 0xd7, 0x50, 0xc4, 0x1d, 0x35,
+    0x66, 0xf9, 0x57, 0xe4, 0x97, 0x96, 0x0b, 0x09, 0xac, 0xce, 0x92, 0x35, 0x85, 0x9b, 0x02, 0x03,
+    0x01, 0x00, 0x01, 0xa3, 0x63, 0x30, 0x61, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16,
+    0x04, 0x14, 0x29, 0xfa, 0xf1, 0xac, 0xcc, 0x4d, 0xd2, 0x4c, 0x96, 0x40, 0x27, 0x75, 0xb6, 0xb0,
+    0xe9, 0x32, 0xe5, 0x07, 0xfe, 0x2e, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30,
+    0x16, 0x80, 0x14, 0x29, 0xfa, 0xf1, 0xac, 0xcc, 0x4d, 0xd2, 0x4c, 0x96, 0x40, 0x27, 0x75, 0xb6,
+    0xb0, 0xe9, 0x32, 0xe5, 0x07, 0xfe, 0x2e, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01,
+    0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01,
+    0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x84, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+    0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x4f, 0x72, 0xf3, 0x36, 0x59,
+    0x8d, 0x0e, 0xc1, 0xb9, 0x74, 0x5b, 0x31, 0x59, 0xf6, 0xf0, 0x8d, 0x25, 0x49, 0x30, 0x9e, 0xa3,
+    0x1c, 0x1c, 0x29, 0xd2, 0x45, 0x2d, 0x20, 0xb9, 0x4d, 0x5f, 0x64, 0xb4, 0xe8, 0x80, 0xc7, 0x78,
+    0x7a, 0x9c, 0x39, 0xde, 0xa8, 0xb3, 0xf5, 0xbf, 0x2f, 0x70, 0x5f, 0x47, 0x10, 0x5c, 0xc5, 0xe6,
+    0xeb, 0x4d, 0x06, 0x99, 0x61, 0xd2, 0xae, 0x9a, 0x07, 0xff, 0xf7, 0x7c, 0xb8, 0xab, 0xeb, 0x9c,
+    0x0f, 0x24, 0x07, 0x5e, 0xb1, 0x7f, 0xba, 0x79, 0x71, 0xfd, 0x4d, 0x5b, 0x9e, 0xdf, 0x14, 0xa9,
+    0xfe, 0xdf, 0xed, 0x7c, 0xc0, 0x88, 0x5d, 0xf8, 0xdd, 0x9b, 0x64, 0x32, 0x56, 0xd5, 0x35, 0x9a,
+    0xe2, 0x13, 0xf9, 0x8f, 0xce, 0xc1, 0x7c, 0xdc, 0xef, 0xa4, 0xaa, 0xb2, 0x55, 0xc3, 0x83, 0xa9,
+    0x2e, 0xfb, 0x5c, 0xf6, 0x62, 0xf5, 0x27, 0x52, 0x17, 0xbe, 0x63,
+};
+
+static uint8_t kEcAttestKey[] = {
+    0x30, 0x82, 0x01, 0x13, 0x02, 0x01, 0x01, 0x04, 0x20, 0xb4, 0x42, 0xdb, 0x79, 0x76, 0xd2, 0xc7,
+    0x4d, 0x17, 0x15, 0x88, 0xf0, 0x7b, 0x6d, 0x94, 0x27, 0x9e, 0xd3, 0x46, 0x17, 0x54, 0x74, 0xbf,
+    0x58, 0xfb, 0xaf, 0x51, 0x2c, 0x8c, 0x2f, 0x1e, 0x23, 0xa0, 0x81, 0xa5, 0x30, 0x81, 0xa2, 0x02,
+    0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f,
+    0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04, 0x41, 0x04, 0x79, 0xbe, 0x66, 0x7e, 0xf9,
+    0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xce, 0x87, 0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d,
+    0xce, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8, 0x17, 0x98, 0x48, 0x3a, 0xda, 0x77, 0x26,
+    0xa3, 0xc4, 0x65, 0x5d, 0xa4, 0xfb, 0xfc, 0x0e, 0x11, 0x08, 0xa8, 0xfd, 0x17, 0xb4, 0x48, 0xa6,
+    0x85, 0x54, 0x19, 0x9c, 0x47, 0xd0, 0x8f, 0xfb, 0x10, 0xd4, 0xb8, 0x02, 0x21, 0x00, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xba, 0xae,
+    0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01,
+    0x01, 0xa1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x18, 0x4c, 0x18, 0x2d, 0x52, 0xa5, 0x0f, 0x38, 0x7f,
+    0xeb, 0x12, 0xe3, 0x6b, 0x8e, 0x64, 0x18, 0x36, 0x28, 0xc1, 0x0d, 0xb7, 0x03, 0x70, 0xde, 0x6f,
+    0x02, 0x12, 0x40, 0xa9, 0x5e, 0x9a, 0xb8, 0x3b, 0x7c, 0x0e, 0x75, 0xfd, 0x19, 0x32, 0x4c, 0xd0,
+    0x11, 0x3d, 0x7b, 0xeb, 0x29, 0xdf, 0xa9, 0x01, 0xb7, 0x40, 0xac, 0xac, 0x56, 0x7e, 0xcf, 0x5a,
+    0x01, 0x1f, 0xa5, 0xc4, 0x98, 0x15, 0x7a,
+};
+
+static uint8_t kEcAttestCert[] = {
+    0x30, 0x82, 0x03, 0x17, 0x30, 0x82, 0x02, 0xbc, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x02, 0x10,
+    0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x81, 0x98,
+    0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30,
+    0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e,
+    0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75,
+    0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03,
+    0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49, 0x6e, 0x63,
+    0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e, 0x64, 0x72,
+    0x6f, 0x69, 0x64, 0x31, 0x33, 0x30, 0x31, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x2a, 0x41, 0x6e,
+    0x64, 0x72, 0x6f, 0x69, 0x64, 0x20, 0x53, 0x6f, 0x66, 0x74, 0x4b, 0x65, 0x79, 0x6d, 0x61, 0x73,
+    0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79, 0x20, 0x41, 0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74,
+    0x69, 0x6f, 0x6e, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x31,
+    0x30, 0x34, 0x31, 0x33, 0x32, 0x33, 0x30, 0x30, 0x5a, 0x17, 0x0d, 0x32, 0x36, 0x30, 0x31, 0x30,
+    0x31, 0x31, 0x33, 0x32, 0x33, 0x30, 0x30, 0x5a, 0x30, 0x81, 0x89, 0x31, 0x0b, 0x30, 0x09, 0x06,
+    0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04,
+    0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x15, 0x30,
+    0x13, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20,
+    0x49, 0x6e, 0x63, 0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41,
+    0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x31, 0x3c, 0x30, 0x3a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c,
+    0x33, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x20, 0x53, 0x6f, 0x66, 0x74, 0x65, 0x4b, 0x65,
+    0x79, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79, 0x20, 0x41, 0x74, 0x74, 0x65,
+    0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6d, 0x65, 0x64,
+    0x69, 0x61, 0x74, 0x65, 0x30, 0x81, 0xf5, 0x30, 0x81, 0xae, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce,
+    0x3d, 0x02, 0x01, 0x30, 0x81, 0xa2, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48,
+    0xce, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04,
+    0x41, 0x04, 0x79, 0xbe, 0x66, 0x7e, 0xf9, 0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xce, 0x87,
+    0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xce, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8,
+    0x17, 0x98, 0x48, 0x3a, 0xda, 0x77, 0x26, 0xa3, 0xc4, 0x65, 0x5d, 0xa4, 0xfb, 0xfc, 0x0e, 0x11,
+    0x08, 0xa8, 0xfd, 0x17, 0xb4, 0x48, 0xa6, 0x85, 0x54, 0x19, 0x9c, 0x47, 0xd0, 0x8f, 0xfb, 0x10,
+    0xd4, 0xb8, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xfe, 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5e,
+    0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0x03, 0x42, 0x00, 0x04, 0x18, 0x4c, 0x18, 0x2d,
+    0x52, 0xa5, 0x0f, 0x38, 0x7f, 0xeb, 0x12, 0xe3, 0x6b, 0x8e, 0x64, 0x18, 0x36, 0x28, 0xc1, 0x0d,
+    0xb7, 0x03, 0x70, 0xde, 0x6f, 0x02, 0x12, 0x40, 0xa9, 0x5e, 0x9a, 0xb8, 0x3b, 0x7c, 0x0e, 0x75,
+    0xfd, 0x19, 0x32, 0x4c, 0xd0, 0x11, 0x3d, 0x7b, 0xeb, 0x29, 0xdf, 0xa9, 0x01, 0xb7, 0x40, 0xac,
+    0xac, 0x56, 0x7e, 0xcf, 0x5a, 0x01, 0x1f, 0xa5, 0xc4, 0x98, 0x15, 0x7a, 0xa3, 0x66, 0x30, 0x64,
+    0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x49, 0xcf, 0x1a, 0xa4, 0x97,
+    0x9e, 0xc0, 0x07, 0xcd, 0x92, 0x83, 0x82, 0xf1, 0x4f, 0xfa, 0x14, 0xfb, 0xe8, 0xf8, 0x50, 0x30,
+    0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0xf5, 0x93, 0x69, 0xf0,
+    0x54, 0xc1, 0x52, 0x5d, 0x1f, 0x59, 0x49, 0xd4, 0xd8, 0x72, 0x1c, 0xae, 0x89, 0x4e, 0x6b, 0x09,
+    0x30, 0x12, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x08, 0x30, 0x06, 0x01, 0x01,
+    0xff, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04,
+    0x03, 0x02, 0x02, 0x84, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
+    0x03, 0x49, 0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0x99, 0xa7, 0x1b, 0xc2, 0x26, 0x64, 0xda, 0x14,
+    0xb2, 0x9e, 0x5f, 0x6d, 0x87, 0x75, 0x52, 0x32, 0x97, 0xe8, 0x5f, 0x7f, 0x3e, 0x23, 0xcd, 0x74,
+    0xc7, 0x50, 0x36, 0x54, 0x5a, 0xe3, 0x94, 0x42, 0x02, 0x21, 0x00, 0x82, 0xf4, 0xa9, 0x9d, 0x2a,
+    0x9b, 0x05, 0xee, 0x8f, 0xcb, 0x33, 0x10, 0x27, 0xf7, 0x40, 0xbe, 0x62, 0xce, 0x38, 0x6d, 0x0b,
+    0xe5, 0x19, 0x2f, 0x0e, 0x36, 0xb3, 0x6d, 0x10, 0x8d, 0x42, 0xa2,
+};
+
+static uint8_t kEcAttestRootCert[] = {
+    0x30, 0x82, 0x03, 0x29, 0x30, 0x82, 0x02, 0xcf, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x09, 0x00,
+    0x98, 0xd8, 0x96, 0x30, 0x3d, 0xbc, 0x29, 0xae, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce,
+    0x3d, 0x04, 0x03, 0x02, 0x30, 0x81, 0x98, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06,
+    0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43,
+    0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55,
+    0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65,
+    0x77, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67,
+    0x6c, 0x65, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04,
+    0x0b, 0x0c, 0x07, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x31, 0x33, 0x30, 0x31, 0x06, 0x03,
+    0x55, 0x04, 0x03, 0x0c, 0x2a, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x20, 0x53, 0x6f, 0x66,
+    0x74, 0x4b, 0x65, 0x79, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79, 0x20, 0x41,
+    0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30,
+    0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x31, 0x30, 0x34, 0x31, 0x33, 0x32, 0x31, 0x30, 0x37, 0x5a,
+    0x17, 0x0d, 0x33, 0x35, 0x31, 0x32, 0x33, 0x30, 0x31, 0x33, 0x32, 0x31, 0x30, 0x37, 0x5a, 0x30,
+    0x81, 0x98, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31,
+    0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f,
+    0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d,
+    0x6f, 0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31, 0x15, 0x30, 0x13,
+    0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0c, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2c, 0x20, 0x49,
+    0x6e, 0x63, 0x2e, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x07, 0x41, 0x6e,
+    0x64, 0x72, 0x6f, 0x69, 0x64, 0x31, 0x33, 0x30, 0x31, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x2a,
+    0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x20, 0x53, 0x6f, 0x66, 0x74, 0x4b, 0x65, 0x79, 0x6d,
+    0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79, 0x20, 0x41, 0x74, 0x74, 0x65, 0x73, 0x74,
+    0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x81, 0xf5, 0x30, 0x81, 0xae,
+    0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x30, 0x81, 0xa2, 0x02, 0x01, 0x01, 0x30,
+    0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04,
+    0x01, 0x00, 0x04, 0x01, 0x07, 0x04, 0x41, 0x04, 0x79, 0xbe, 0x66, 0x7e, 0xf9, 0xdc, 0xbb, 0xac,
+    0x55, 0xa0, 0x62, 0x95, 0xce, 0x87, 0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xce, 0x28, 0xd9,
+    0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8, 0x17, 0x98, 0x48, 0x3a, 0xda, 0x77, 0x26, 0xa3, 0xc4, 0x65,
+    0x5d, 0xa4, 0xfb, 0xfc, 0x0e, 0x11, 0x08, 0xa8, 0xfd, 0x17, 0xb4, 0x48, 0xa6, 0x85, 0x54, 0x19,
+    0x9c, 0x47, 0xd0, 0x8f, 0xfb, 0x10, 0xd4, 0xb8, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xba, 0xae, 0xdc, 0xe6, 0xaf,
+    0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0x03, 0x42,
+    0x00, 0x04, 0x20, 0xf2, 0x5a, 0xc7, 0x49, 0x9b, 0xf1, 0x84, 0xf3, 0x34, 0x96, 0xc9, 0x3c, 0x73,
+    0x00, 0xf2, 0x3c, 0x2e, 0xa2, 0xec, 0x0e, 0x99, 0x83, 0x5d, 0x9a, 0x22, 0x49, 0x14, 0xef, 0x8f,
+    0x5f, 0xc4, 0xff, 0xfa, 0x12, 0x7c, 0xc4, 0xa9, 0x9d, 0x6d, 0xa3, 0x3c, 0x09, 0xbe, 0xed, 0x7d,
+    0x2d, 0xb5, 0xa4, 0x5e, 0xac, 0x1e, 0x7b, 0xc6, 0xa4, 0x81, 0x5d, 0xf3, 0x8b, 0x43, 0x6d, 0x4c,
+    0x31, 0xbc, 0xa3, 0x63, 0x30, 0x61, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04,
+    0x14, 0xf5, 0x93, 0x69, 0xf0, 0x54, 0xc1, 0x52, 0x5d, 0x1f, 0x59, 0x49, 0xd4, 0xd8, 0x72, 0x1c,
+    0xae, 0x89, 0x4e, 0x6b, 0x09, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16,
+    0x80, 0x14, 0xf5, 0x93, 0x69, 0xf0, 0x54, 0xc1, 0x52, 0x5d, 0x1f, 0x59, 0x49, 0xd4, 0xd8, 0x72,
+    0x1c, 0xae, 0x89, 0x4e, 0x6b, 0x09, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff,
+    0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01,
+    0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x84, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d,
+    0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x71, 0xa3, 0x49, 0xbb, 0x57, 0xe1,
+    0x0a, 0xd0, 0x8c, 0x5f, 0xed, 0x89, 0x30, 0xcf, 0xdb, 0x33, 0x3c, 0xed, 0xb9, 0xe0, 0x46, 0x11,
+    0x2a, 0x73, 0xa7, 0x59, 0x53, 0xe4, 0x70, 0x18, 0xd4, 0xc2, 0x02, 0x21, 0x00, 0xb7, 0x0b, 0xf4,
+    0x65, 0x8b, 0x1c, 0xbe, 0x53, 0x04, 0x9e, 0x9a, 0x16, 0x28, 0x55, 0xa9, 0x55, 0x48, 0xda, 0x28,
+    0x2c, 0x3e, 0x4f, 0x68, 0xaa, 0xb4, 0x6e, 0xfe, 0x27, 0x4c, 0xeb, 0x78, 0x47,
+};
+
+size_t kCertificateChainLength = 2;
+
 }  // anonymous namespace
 
 SoftKeymasterContext::SoftKeymasterContext(const std::string& root_of_trust)
@@ -421,6 +687,93 @@ keymaster_error_t SoftKeymasterContext::GenerateRandom(uint8_t* buf, size_t leng
     return KM_ERROR_OK;
 }
 
+EVP_PKEY* SoftKeymasterContext::AttestationKey(keymaster_algorithm_t algorithm,
+                                               keymaster_error_t* error) const {
+
+    const uint8_t* key;
+    size_t key_length;
+    int evp_key_type;
+
+    switch (algorithm) {
+    case KM_ALGORITHM_RSA:
+        key = kRsaAttestKey;
+        key_length = array_length(kRsaAttestKey);
+        evp_key_type = EVP_PKEY_RSA;
+        break;
+
+    case KM_ALGORITHM_EC:
+        key = kEcAttestKey;
+        key_length = array_length(kEcAttestKey);
+        evp_key_type = EVP_PKEY_EC;
+        break;
+
+    default:
+        *error = KM_ERROR_UNSUPPORTED_ALGORITHM;
+        return nullptr;
+    }
+
+    EVP_PKEY* pkey = d2i_PrivateKey(evp_key_type, nullptr /* pkey */, &key, key_length);
+    if (!pkey)
+        *error = TranslateLastOpenSslError();
+
+    return pkey;
+}
+
+keymaster_cert_chain_t* SoftKeymasterContext::AttestationChain(keymaster_algorithm_t algorithm,
+                                                               keymaster_error_t* error) const {
+    // If we have to bail it will be because of an allocation failure.
+    *error = KM_ERROR_MEMORY_ALLOCATION_FAILED;
+
+    UniquePtr<keymaster_cert_chain_t, CertificateChainDelete> chain(new keymaster_cert_chain_t);
+    if (!chain.get())
+        return nullptr;
+    memset(chain.get(), 0, sizeof(keymaster_cert_chain_t));
+
+    chain->entries = new keymaster_blob_t[kCertificateChainLength];
+    if (!chain->entries)
+        return nullptr;
+
+    memset(&chain->entries, 0, sizeof(chain->entries[0]) * kCertificateChainLength);
+    chain->entry_count = kCertificateChainLength;
+
+    size_t entry = 0;
+
+    switch (algorithm) {
+    case KM_ALGORITHM_RSA:
+        chain->entries[entry].data = dup_array(kRsaAttestCert);
+        if (!chain->entries[entry].data)
+            return nullptr;
+        chain->entries[entry].data_length = array_length(kRsaAttestCert);
+        entry++;
+        chain->entries[entry].data = dup_array(kRsaAttestRootCert);
+        if (!chain->entries[entry].data)
+            return nullptr;
+        chain->entries[entry++].data_length = array_length(kRsaAttestRootCert);
+        break;
+
+    case KM_ALGORITHM_EC:
+        chain->entries[entry].data = dup_array(kEcAttestCert);
+        if (!chain->entries[entry].data)
+            return nullptr;
+        chain->entries[entry++].data_length = array_length(kEcAttestCert);
+        chain->entries[entry].data = dup_array(kEcAttestRootCert);
+        if (!chain->entries[entry].data)
+            return nullptr;
+        chain->entries[entry++].data_length = array_length(kEcAttestRootCert);
+
+        break;
+
+    default:
+        *error = KM_ERROR_UNSUPPORTED_ALGORITHM;
+        return nullptr;
+    };
+
+    assert(entry == kCertificateChainLength);
+
+    *error = KM_ERROR_OK;
+    return chain.release();
+}
+
 keymaster_error_t SoftKeymasterContext::ParseKeymaster1HwBlob(
     const KeymasterKeyBlob& blob, const AuthorizationSet& additional_params,
     KeymasterKeyBlob* key_material, AuthorizationSet* hw_enforced,
diff --git a/sw_rsa_attest_root.key.pem b/sw_rsa_attest_root.key.pem
new file mode 100644
index 0000000..387a852
--- /dev/null
+++ b/sw_rsa_attest_root.key.pem
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIICXQIBAAKBgQCia63rbi5EYe/VDoLmt5TRdSMfd5tjkWP/96r/C3JHTsAsQ+wz
+fNes7UA+jCigZtX3hwszl94OuE4TQKuvpSe/lWmgMdsGUmX4RFlXYfC78hdLt0GA
+ZMAoDo9Sd47b0ke2RekZyOmLw9vCkT/X11DEHTVm+Vfkl5YLCazOkjWFmwIDAQAB
+AoGAU8dxXchmqzVNbbvff7zgUa63YErk51Yem/EXzhkMaIXRkMO0edaCtZtnkRvg
+9OQ2qEiLWaCTlUoyU7H/HUn2lwTQsOXyZI7dHijVDRMIv1mmrHCrGW/JC8FXfPLS
+r3L3KoHXQVYL2mslbR8Rpogxq4WwnwK6XqSTH9mynFwQwEkCQQDMX3EZk3ricWVH
+ruXD0BpXOMMpZuLu4rg5+1L51WEJvItIMeSjLuNa+g3AI8AYTYYi/aSLk6XEv82L
+iXFGmJ2XAkEAy3M8k8Z0QzHae4olduqoHVWEarBtDE+fqFQBWgdm8fZhdHWrvlAc
+qwJIXMUVc+dWm/FAQarCjbqWqhCRdaYgnQJBAJ7z7GdUCVNtlrQ2F4ZAqPwFreTZ
+nM7njxmpm1Os3hhQiJPSGl3A7huoOGGkbJd6VEWKuRvF7jwkYZ2RfITH1mkCQAvh
+X9E1Toa5+4spRwTJsSV9X+0m/kcwwx7+QNH0CrPockptsKi9Xt8xk+4u6BDLmogi
+r2DmStQh6DhoHUZkfBUCQQCOgBkqH/15drpdR+BQH3VaP4/ALFfxR9E3G+lS+M5a
+IqJEk9kh8vjuGzTaAZyU5keUmpWNc1gI7OvDMaH4+8vQ
+-----END RSA PRIVATE KEY-----